/**
 * Copyright 2013 David Rusek <dave dot rusek at gmail dot com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.robotninjas.barge;

import com.google.common.base.Objects;
import com.google.common.base.Throwables;
import com.google.common.net.HostAndPort;

import javax.annotation.Nonnull;
import javax.annotation.concurrent.Immutable;
import javax.annotation.concurrent.ThreadSafe;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.net.UnknownHostException;

import static com.google.common.base.Preconditions.checkNotNull;

@Immutable
@ThreadSafe
public class Replica {

    private final InetSocketAddress address;

    Replica(@Nonnull InetSocketAddress address) {
        this.address = checkNotNull(address);
    }
    
    @Nonnull
    public static Replica fromString(@Nonnull String info) {
        try {
            checkNotNull(info);
            HostAndPort hostAndPort = HostAndPort.fromString(info);
            InetAddress addr = InetAddress.getByName(hostAndPort.getHostText());
            InetSocketAddress saddr = new InetSocketAddress(addr, hostAndPort.getPort());
            return new Replica(saddr);
        } catch (UnknownHostException e) {
            throw Throwables.propagate(e);
        }
    }

    public SocketAddress address() {
        return address;
    }

    @Override
    public int hashCode() {
        return Objects.hashCode(address());
    }

    @Override
    public boolean equals(Object o) {
        if (o == this) {
            return true;
        }
        if (o instanceof Replica) {
            Replica other = (Replica) o;
            return Objects.equal(address(), other.address());
        }

        return false;

    }

    @Nonnull
    @Override
    public String toString() {
        return address.getAddress().getHostName() + ":" + address.getPort();
    }
}
